The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 22, 2023
Filed:
Jun. 13, 2022
Red Hat, Inc., Raleigh, NC (US);
Michael Tsirkin, Westford, MA (US);
Karen Lee Noel, Pembroke, NH (US);
Red Hat, Inc., Raleigh, NC (US);
Abstract
A system includes a memory including a plurality of memory pages, a processor in communication with the memory, and a supervisor. The supervisor is configured to locate at least two duplicate memory pages of the plurality of memory pages, write-protect the at least two duplicate memory pages, and add the at least two duplicate memory pages to a list. Responsive to a first page of the at least two duplicate memory pages changing, the supervisor is configured to remove the first page from the list. Responsive to a memory pressure-triggering event, the supervisor is configured to remove a second page of the at least two duplicate memory pages from the list. The second page is reused after removal from the list.